關于戶外直流開關電源中采用熱交換方式的介紹

摘要：隨著通訊網絡的建設和發展，解決網絡盲區的覆蓋，減少投資成本，涌現出大量的戶外基站和戶外型的通訊設備、供電設備，這些遠程通訊設備處于惡劣的外部環境下，它們遭受太陽的熱輻射和設備本身發熱的影響，消除這兩種熱源的影響對電子設備的可靠工作至關重要，本文著重介紹了戶外電源的惡劣環境，對設備的影響，機箱設計、散熱計算、主動散熱、被動散熱等技術，熱交換器的原理，戶外電源的結構，采用熱交換器方式的優勢等內容。 敘詞：戶外電源，散熱，IPXX，熱交換器、溫控 Abstract：Along with the construction and development of telecommunication networks, more and more outdoor base station systems, outdoor communication and power supply equipments were applied for the coverage of networks vacancy and saving investment. Because these remote communication equipment work in serious outdoor environment, the radiant heat of sunshine and the heat of equipment operation will badly affect the reliability of electronic equipment. It is very significant for the outdoor equipment to avoid these two heat sources. The article introduces the serious operating environment of outdoor power supply system and the effect of environment. To discusses the design of combined rack, the calculation of heat radiation, the initiative heat radiation, the passive heat radiation, the theory and advantage of heat exchanger, the configuration of outdoor power supply system etc. Keyword：Outdoor power supply system, Heat radiation, IPXX, Heat exchanger, Temperature control